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Density of Ices of Astrophysical Interest

  • Miguel Ángel Satorre
  • Ramón Luna
  • Carlos Millán
  • Manuel Domingo
  • Carmina Santonja
Chapter
Part of the Astrophysics and Space Science Library book series (ASSL, volume 451)

Abstract

Density plays an important role in the understanding of chemical and physical evolution of ices in space. It is related with abundances, energetic processing, porosity, buoyancy, etc.

The experimental values available are scarce and, often, corresponding to ices without pores (bulk density) despite many experiments devoted to astrophysics form porous ices. Additionally, ice density frequently depends on the formation temperature, and these studies are even scarcer.

In this chapter, bulk and average density are defined, and experimental methods to determine both densities are reviewed. Ice density values are presented covering from the lighter to the denser ones. The relationship between density and ice structure is exemplified. The examples cover temperature phase transitions, amorphous and crystalline structures. The possibility to detect metastable crystalline structures is also proposed. The case of ice mixtures is presented to warning about the impossibility to obtain density values from those of the pure constituents. Finally, ice porosity experimentally obtained is tabulated to reveal that high density ices (>1 g cm−3) can be as porous as low density ices (<0.5 g cm−3).

Notes

Acknowledgements

The authors thank the Ministerio de Economía y Competitividad that funded this research, with grants FIS2013-48087-C2-2-P, FIS2016-77726-C3-3-P and AYA2015-71975-REDT.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Miguel Ángel Satorre
    • 1
  • Ramón Luna
    • 1
  • Carlos Millán
    • 1
  • Manuel Domingo
    • 1
  • Carmina Santonja
    • 1
  1. 1.Escuela Técnica Superior de Ingenieros Industriales, Centro de Tecnologías Físicas, Universitat Politècnica de ValènciaValenciaSpain

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